/Engine/Source/Editor/UnrealEd/Public/Subsystems/AssetEditorSubsystem.h
Opens an asset by path
void OpenEditorForAsset ( const [FString](API\Runtime\Core\Containers\FString) & AssetPathName, const [EAssetTypeActivationOpenedMethod](API\Developer\AssetTools\EAssetTypeActivationOpenedMethod) OpenedMethod )